Frequency of E-cigarette use and cigarette smoking among Canadian students.

Introduction:
This article examines the relationship between the frequency of e-cigarette use and cigarette smoking among Canadian students. The study uses data from the 2016-2017 Canadian Student Tobacco, alcohol and Drugs Survey to investigate this relationship.

Key Points:

* The study found that among students who reported any cigarette smoking in the past 30 days, 55% also reported e-cigarette use at least once in the last 30 days.
* The frequency of e-cigarette use was associated with higher odds of cigarette smoking, especially among more frequent e-cigarette users.
* Students who used e-cigarettes for 21-30 days had higher odds of cigarette smoking (at least once, at least 11 days, and at least 21 days).
* The study also found that exposure to cigarette smoking in vehicles and lower socioeconomic status were associated with higher odds of cigarette smoking.
* The results suggest that e-cigarette use may be a risk factor for cigarette smoking among Canadian students.

Main Message:
The study highlights the need for further research on the relationship between e-cigarette use and cigarette smoking among adolescents. The findings suggest that e-cigarette use may be a risk factor for cigarette smoking, particularly among more frequent e-cigarette users. The study also underscores the importance of addressing exposure to cigarette smoking in vehicles and socioeconomic status as factors that may contribute to cigarette smoking among Canadian students. Overall, the results suggest that efforts to reduce e-cigarette use and exposure to cigarette smoking could have potential benefits for preventing cigarette smoking among adolescents.

azagba S, Kah K, Latham K. Frequency of E-cigarette use and cigarette smoking among Canadian students. Preventive medicine. 2019;126:105769. doi:10.1016/j.ypmed.2019.105769